How far is Sullivan, IL from Des Plaines, IL?
The driving distance from Sullivan, IL to Des Plaines, IL is about 214.1 miles (344.5 km), with a travel time of about 03h 29m by car.
- The straight-line flight distance is about 172.4 miles (277.4 km).
- For a round trip, plan for roughly 06h 59m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM CDT.
Reverse, save, or send this route
This drive is better planned with a longer stop or an overnight stay. Copy the route link, send it to another device, or print a clean version before you head out.
This drive is better planned with a longer stop or an overnight stay.
Flight Distance
Driving Distance
Gas Cost Calculator
Leave and Arrive Planner
Pick a departure time to see your estimated arrival and same-day return window.
Drive time stays fixed at 03h 29m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
You are leaving earlier than the recommended window, which gives you extra margin for breaks and traffic.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
Village in Iroquois County, Illinois, United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Chance Rain Showers
Mostly Cloudy then Rain Likely
Driving Route Map
The map below follows the saved road route between Sullivan and Des Plaines.
Turn-by-Turn Driving Directions
Step-by-step road directions between Sullivan and Des Plaines.
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1
Start on West Harrison Street
31 m · 10 sec · West Harrison Street
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2
Turn left onto North Main Street
534 ft · 26 sec · North Main Street
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3
Turn right
14.4 mi · 21 min
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4
Continue on Dewitt Avenue
2 mi · 3 min · Dewitt Avenue
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5
Turn right onto North 19th Street
2731 ft · 60 sec · North 19th Street
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6
At the end of the road, turn left onto Charleston Avenue
3 mi · 6 min · Charleston Avenue
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7
Turn right onto I-57 North: Champaign
1422 ft · 49 sec
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8
Merge slight left
159.2 mi · 2 hr 53 min
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9
Take the exit slight right toward IL 83, I 294 Toll North: Sibley Boulevard, 147th Street, Wisconsin
1718 ft · 33 sec
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10
Keep slight right to continue on I 294 Toll North: Wisconsin
1.8 mi · 3 min
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11
Merge slight left onto Tri-State Tollway
20.8 mi · 26 min · Tri-State Tollway
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12
Keep slight left to continue on Tri-State Tollway
11.7 mi · 15 min · Tri-State Tollway
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13
Take the exit slight right toward Touhy Avenue
635 ft · 16 sec
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14
Keep slight left to continue on Touhy Avenue
2694 ft · 1 min
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15
Keep slight left to continue on Touhy Avenue West
688 ft · 17 sec
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16
Keep slight right to continue on Touhy Avenue West
1799 ft · 44 sec
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17
Turn straight onto East Touhy Avenue
99 m · 7 sec · East Touhy Avenue
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18
Turn slight right
103 m · 9 sec
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19
Turn right onto South Des Plaines River Road
1.7 mi · 3 min · South Des Plaines River Road
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20
Turn left onto Henry Avenue
557 ft · 24 sec · Henry Avenue
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21
Arrive at your destination
0 m · 1 sec · Henry Avenue
Car Route Details
A richer read on the saved driving route between Sullivan and Des Plaines.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
I-57 North
Merge slight left
159 mi · 02h 53m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A longer out-and-back drive
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
Chance Rain Showers leaving Sullivan and Mostly Cloudy then Rain Likely near Des Plaines.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Sullivan to Des Plaines?
The road trip is about 214.1 miles (344.5 km) and usually takes 03h 29m in normal driving conditions.
Is this a same-day trip or an overnight route?
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
What is the halfway point on this route?
Onarga is a useful midpoint, sitting about 108.7 miles from Sullivan and 105.4 miles from Des Plaines.
How much longer is the road route than the straight-line distance?
The direct path is about 172.4 miles (277.4 km), while the road route adds roughly 41.7 extra miles because roads do not follow the straight air line.
When is the best time to leave for this route?
A good departure window is usually 6:00 AM to 8:00 AM CDT. If you want a more comfortable same-day return, try to leave by 10:00 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $28.47 one way or $56.94 round trip. Estimated CO2 is about 67.1 kg one way.
What should you check before leaving?
Before you leave, expect Chance Rain Showers around Sullivan and Mostly Cloudy then Rain Likely near Des Plaines.
Stop Ideas Near Onarga
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Onarga.
Gilman
Kankakee
Rantoul
Dwight station
Flight Path Map
This map shows the direct air route between Sullivan and Des Plaines. Straight-line distance: 172.37 mi (277.41 km).
#1 Sullivan
City in Illinois
| Population | 4,400 |
| Coordinates | 39.5994800, -88.6078400 |
| Altitude | 205 |
| Country | United States |
#2 Des Plaines
The most populous city in Cook County, Illinois.
| Population | 58,179 |
| Coordinates | 42.0333600, -87.8834000 |
| Altitude | 193 |
| Country | United States |
End: Henry Avenue (-87.883408, 42.033456)
Estimated Travel Time
Distance: 344 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 07h 07m |
| 40 mph (64.37 km/h) | 05h 21m |
| 50 mph (80.47 km/h) | 04h 16m |
| 60 mph (96.56 km/h) | 03h 34m |
| 70 mph (112.65 km/h) | 03h 03m |
| 80 mph (129 km/h) | 02h 40m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.77 | $28.47 | $56.94 |
| Mid-grade | $4.25 | $32.11 | $64.22 |
| Premium | $4.65 | $35.14 | $70.28 |
| Diesel | $5.30 | $40.05 | $80.09 |
Assumes 8.3 L/100 km (about 28.3 MPG). CO2 is an estimate and varies by vehicle, fuel blend, traffic, and terrain.
Prices in Illinois · May 13, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.